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Scientists Find RFID 'Fingerprint' That Could Prevent Counterfeiting

Radio frequency identification tags (RFID), which appear in items like credit cards and passports, have long been susceptible to hackers looking to steal personal information. Still, RFID tags are used in many ways -- from tracking a shipment of clothes to automatically opening a doggie door. But a breakthrough from a group of University of Arkansas scientists might just ease the minds of those who worry these devices aren't secure enough. The discovery hasn't much to do with the devices themselves, but the way in which they are read.

According to Physorg.com, Professors Dale R. Thompson and Jai Di discovered that each RFID tag has a "fingerprint." Essentially, each tag has a unique power response at different radio frequencies -- even for tags of the same make and model. With preexisting physical characteristics in mind, scientists can interpret an electronic "fingerprint" to each tag. Using those fingerprints as a key would make the devices harder to hack and counterfeit.

With RFID being used more and more by government agencies and private businesses, it's comforting to know that somebody is thinking about security. Maybe now we can stop wrapping our credit cards in aluminum foil. It's a good thing this news broke before we let paranoia take over. [From: Physorg.com, via Engadget]

Web

Harry Potter's Invisibility Cloak Might Actually Happen, Thanks to Physics

Hold onto those wands, all you would-be wizards. One of Harry Potter's most valuable possessions might soon make the jump from the page to the real world. According to The Daily Mail, researchers at Imperial College in London received an $8.1-million grant to develop an invisibility suit. That's right, you could throw on a garment and sneak around, just like Harry did while stalking the halls of Hogwarts.

The idea isn't as far-fetched as it initially sounds. When light hits an object, it bounces off the surface and into the eye, which is what makes it visible to us. Using "meta-material," these scientists want to force light waves to flow around an object (think water flowing around a rock in a river), not bounce off of it, which would make the object invisible to the eye. But right now, all this is simply theory. Next, the researchers must engineer a material that can manipulate light waves in such a manner. As we've said before, that's much easier said than done thanks to a little thing we call physics.

If this idea becomes reality (trust us, we're keeping our fingers crossed), we have one simple request: Please don't model the suit's look after Harry and the gang's school uniforms. That just doesn't work for us. [From: The Daily Mail]

Cell Phones

This Just In: Cell Phones Change Your Brain

The good news? Scientists think they have finally pinpointed the effect that cell phones have on brain function. The bad news? They're not sure whether this is good or bad news.

The Swedish Research Council announced findings out of Sweden's Örebro University that claim to have uncovered a specific effect that cell phones can have on the brain -- namely, a correlation between usage and an increase in the amounts of a protein called transthyretin in a user's bloodstream. Now, this isn't necessarily a bad thing, since transthyretin actually comprises part of the fluid that provides a nice little cushion to our brains (when was the last time you heard anyone complain about a cushion surplus?).

Teenagers and children who used cell phones more often were more likely to suffer from headaches and impaired concentration, but researchers didn't want to draw any explicit chains of causality (Chatty teens have a harder time concentrating? You don't say.). The most important finding, though, is simply the revelation that, negative, positive, or neutral, there does seem to be some neurological impact from cell phones.

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Computers

Schools of Swimming Robots to Study Ocean Currents

Robot Swarms to Study Ocean Currents
If you happen to notice a swarm of robots floating past your beachfront home, don't panic; it's not the first wave of the SkyNet invasion. Aided by funding from the National Science Foundation, the Scripps Institution of Oceanography (SIO) is planning to deploy fleets of autonomous robots, possibly numbering in the hundreds, to study localized oceanic environments.

High on the list of phenomena to study is the way in which tiny sub-currents affect small organisms like plankton and their abilities to survive and move about the ocean. The robots, called "autonomous underwater explorers" (AUEs), will also provide important data about the spread of dangerous environmental toxins that arise from disasters like oil spills and harmful algae blooms.

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Web, Social Networking

Your Facebook Photo Says More Than You Think, Research Says

A photo is worth a thousand words, as the saying goes, but your Facebook photo might be worth more. It is, after all, available to the entire world. Let's face it; we're all vain to varying degrees, and have some sort of self-image that we're constantly trying to project online. A newly released study aims to determine just what it means to project our avatar through the lens of social networking sites.

Researchers from Sonoma State University recently found that images can pretty reliably convey some, though not all, personality traits. In the study, 12 random people looked at photos of 123 undergraduate students in different poses -- both
"neutral" and "spontaneous." (The "neutral" poses were dictated by researchers, while the "spontaneous" poses were self-directed.) The subjects were then asked to rank the photos according to 10 traits: extroversion, agreeableness, conscientiousness, emotional stability, openness, likability, self-esteem, loneliness, religiosity, and political orientation. In order to judge the accuracy of the subjects' appraisals, scientists compared them to the self-evaluations submitted by the photographed students.

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Computers, Visionaries

Ultrasound Could Protect Pacemakers From Hackers

You never want your wireless device open to attacks, but if that device is implanted inside your body, security becomes even more important. With pacemakers and other medical devices being controlled and monitored from afar, scientists say it's time to step up protection. Those concerns in mind, a group of researchers from the Swiss Federal Institute of Technology and the French National Institute for Research in Computer Science and Control have developed a new safety net.

According to Technology Review
, the system uses ultrasound waves to measure the distance between a medical device and the wireless reader trying to communicate with it. This could prevent potential hackers from wirelessly gaining access to private information stored on the device, draining its battery, or causing it to malfunction. With the ultrasound system, access to the device would be restricted to the physical proximity of the communicator. In the plan proposed by senior researcher Claude Castelluccia and his team, you'd need to go through a series of authentication steps and be within 10 meters of the device in order to gain access.

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Cell Phones

Avoid The Doctor: Cough Into Your Phone For a Diagnosis

What does that cough say about you? Well, a lot. After all, each one is unique (wet or dry, productive or non-productive). Instead of waiting hours at a doctor's office to find out what this common symptom means, a group of researchers want to use the cell phone to get a quicker diagnosis.

According to Discovery News, a new mobile technology could allow people to forgo a visit to the doctor's office by simply coughing into a cell phone. The new technology, which is being developed by STAR Analytical Services, would allow doctors to listen, measure, and analyze a patient's cough. Just by doing that, a doctor might be able to diagnose any disease from the common cold to the flu. But these scientists want to do more than just scratch the surface of the cough. They're compiling sound data on thousands of different types of coughs and analyzing the distinct sounds which occur at the end of each.

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Cameras

Silk-Silicon Implants Could Connect to Your Brain, Enable LED Tattoos

Biology and technology are increasingly crossing paths these days, so it comes as no surprise that researchers have found a way to literally fuse the two, creating implantable technology for the 21st century.

Researchers have developed a new type of super-thin silicon transistor, which can be embedded on a dissolvable silk-based film (pictured). Brian Litt, associate professor of neurology and bioengineering at the University of Pennsylvania, told Technology Review, "Current medical devices are very limited by the fact that the active electronics have to be 'canned,' or isolated from the body, and are on rigid silicon." These new silicon-silk implants are much easier to place within a body: the silk sheet "melts away," and the transistors are small enough that they don't irritate tissues.

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Car Tech, Computers

MIT's AIDA: The Friendly GPS Robot for Your Dashboard


Ever wish your GPS system could be something more than just a bodiless voice? Ever wished you had a pretty face to associate with that mellifluous, alluring car voice? Thanks to scientists at MIT, you might soon be able to entertain all your wildest robot fantasies.

AIDA, short for Affective Intelligent Driving Agent, is like a GPS-fueled Wall-E-meets-personal-assistant, a nifty little robot that can not only help you find the fastest route home, but can also learn your favorite after work activities, alert you when you're running out of gas, and adjust its directions to traffic conditions. The best part, though? It has a head that pops out of your dashboard. And it can smile. If you're nice, it'll even wink.

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The Science of Mona Lisa's Smile


The subtle complexity of Mona Lisa's sly smirk has captivated generations of casual art enthusiasts, academics, and even scientists. In reality, it is a fine sliver of paint, but in the realm of art, it acts as a monument to the indefinable. But it's time to end the infernal debate: is it a smile or not?

According to a study conducted at the Institute of Neuroscience in Alicante, Spain, the answer is both. Arggggg!

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Computers

Creepy Japanese Robot Simulates Swine Flu

Most people do anything they can to prevent viruses from infecting their high-tech toys. One group of Japanese scientists, though, have created a robot that actually embraces an especially virulent (and topical) strain: Swine Flu.

The robot , unveiled at the recent Security and Safety Trade Expo (RISCON) in Tokyo as part of a series of flu-prevention devices, is designed to exhibit symptoms of sweating, moaning, and convulsing that are typical of patients infected with the H1N1 virus. If not properly treated, the symptoms deteriorate, and, dramatically, the cyborg stops breathing. The humanoid, according to scientists, aims to assist doctors and medical professionals in their treatment of and education about a virus that, as of October 11, had already led to 4,735 deaths worldwide, as well as around 400,000 confirmed cases, according to the World Health Organization.

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Web, Social Networking

More People Updating Their Status Than Ever, Study Finds


The human obsession with "status" is almost as old as human history itself. Though the word has a historically hierarchical connotation, contemporary usage of "status" often has a different, more Twitter-ized meaning. Yet the fascination remains strong and, in a hyper-connected world, is rapidly intensifying.

According to a study conducted as part of the Pew Internet and American Life Project, approximately one in every five Internet users either maintains their status via some social networking medium like Twitter or Facebook, or uses similar sites to keep track of others' statuses. A full 19-percent of those surveyed reported using status-updating Web sites, a marked increase from the 11-percent that similar surveys found last April and December.

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Cell Phones

Clown on a Unicycle Goes Unnoticed by Cell Phone Users

Clown on a Unicycle Goes Unnoticed by Cell Phone Users
It's conventional wisdom at this point that cell phones are distracting, and that even simple activities like walking can become dangerous endeavors when mixed with texting. We've read, and reported on, study after study concerning cell phone users' lack of awareness, but the particulars of one such study, reported by LiveScience, stands out.

One part of the study, headed by Ira Hyman, Jr. of Western Washington University, involved interviewing 150 students who had just walked across the university's campus. He tried to ascertain whether or not the students had seen anything strange on their stroll. Hyman (Stop giggling... what are you, six?) was hoping the interviewees spotted one of his students who was dressed in a clown suit and riding a unicycle around a prominent sculpture on campus. When asked directly if they had seen such a clown, those who were speaking on the phone or text messaging were far less likely to have noticed the odd scene than were other participants.

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Web

The Internet Changes Your Brain, Study Shows

The Internet has firmly burrowed its way into our psyches. We think in 140-character bursts. We Google our memory when we can't, for the life of us, remember the name of that guy from 'Ghost.' We meet new people and imagine a reconfiguration of our Facebook friends list. The Internet has fundamentally changed the way we think, and a newly released study may provide hard, scientific proof of what we've always known.

In a recent UCLA study, adults with little Internet wherewithal showed noticeable changes in brain activity after just one week of online exposure. In fact, researchers suggest that the Internet may even help stimulate and enhance cognition in older adults, a finding that could have significant implications for Alzheimer's and dementia research. The study looked at a group of older adults, aged 55 to 78, half of whom used the Internet on a daily basis and half of whom hardly at all. After researchers used an MRI to examine brain activity while subjects performed online searches, the volunteers were sent home. While there, they spent an hour a day performing Web searches, for a total of seven days. Among the novices, researchers found increased activity in the neural regions controlling language, memory, and vision. Perhaps more interestingly, they discovered that after only one week, those with little prior experience displayed brain activity very similar to that of the more savvy users.

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Computers

Shakespeare Had Collaborators, Says Computer Program

Thank goodness our e-mail addresses have changed since the days of Shakespeare 101, or we'd be getting big, fat "I told you so's" from our college professors. For as many years as he's been studied, scholars have raged about whether or not Shakespeare had collaborators (or snatched some language from playwrights of his day). However, Sir Brian Vickers at the University of London says he can now prove that Shakespeare got a hand, by using modern-day plagiarism technology.

Vickers took 'Pl@giarism,' a program meant to detect whether or not students have been cheating, and took phrases from 'Edward III,' a play attributed to Shakespeare, and matched them against other dramatic pieces. According to Vickers, 60-percent of the play's phrases are reminiscent of Shakespearean contemporary Thomas Kyd, while only 40-percent suit the Bard himself, leading the professor to conclude that 'Eddy Three' is mostly a work of Kyd's.

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